diff options
Diffstat (limited to 'write_or_die.c')
-rw-r--r-- | write_or_die.c | 72 |
1 files changed, 42 insertions, 30 deletions
diff --git a/write_or_die.c b/write_or_die.c index 6db1d3123d..613c0c3f6e 100644 --- a/write_or_die.c +++ b/write_or_die.c @@ -35,49 +35,61 @@ void write_or_die(int fd, const void *buf, size_t count) } } -int write_or_whine(int fd, const void *buf, size_t count, const char *msg) +int write_in_full(int fd, const void *buf, size_t count) { const char *p = buf; - ssize_t written; + ssize_t total = 0; + ssize_t wcount = 0; while (count > 0) { - written = xwrite(fd, p, count); - if (written == 0) { - fprintf(stderr, "%s: disk full?\n", msg); - return 0; - } - else if (written < 0) { - if (errno == EPIPE) - exit(0); - fprintf(stderr, "%s: write error (%s)\n", - msg, strerror(errno)); - return 0; + wcount = xwrite(fd, p, count); + if (wcount <= 0) { + if (total) + return total; + else + return wcount; } - count -= written; - p += written; + count -= wcount; + p += wcount; + total += wcount; + } + + return wcount; +} + +int write_or_whine_pipe(int fd, const void *buf, size_t count, const char *msg) +{ + ssize_t written; + + written = write_in_full(fd, buf, count); + if (written == 0) { + fprintf(stderr, "%s: disk full?\n", msg); + return 0; + } + else if (written < 0) { + if (errno == EPIPE) + exit(0); + fprintf(stderr, "%s: write error (%s)\n", + msg, strerror(errno)); + return 0; } return 1; } -int write_in_full(int fd, const void *buf, size_t count, const char *msg) +int write_or_whine(int fd, const void *buf, size_t count, const char *msg) { - const char *p = buf; ssize_t written; - while (count > 0) { - written = xwrite(fd, p, count); - if (written == 0) { - fprintf(stderr, "%s: disk full?\n", msg); - return 0; - } - else if (written < 0) { - fprintf(stderr, "%s: write error (%s)\n", - msg, strerror(errno)); - return 0; - } - count -= written; - p += written; + written = write_in_full(fd, buf, count); + if (written == 0) { + fprintf(stderr, "%s: disk full?\n", msg); + return 0; + } + else if (written < 0) { + fprintf(stderr, "%s: write error (%s)\n", + msg, strerror(errno)); + return 0; } return 1; |